I collected some data with the on-line rating item while showing a video. Now, I am trying to interpret the data. It appears that the values typically range from 0 to 2. Is this the correct range? Sometimes, though, the value is -1. What does this mean?

(Incidentally, my "OnLineViewer" utility doesn't work. If I try to open the data file, I get an error message reading "Error 339. Component 'MSCOMCT2.OCX' or one of its dependencies not correctly registered: a file is missing or invalid.")